A battery of emf ? and internal resistance r is hooked up

Chapter 7, Problem 5P

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QUESTION:

Problem 5P

A battery of emf ϵ and internal resistance r is hooked up to a variable “load” resistance, R. If you want to deliver the maximum possible power to the load, what resistance R should you choose? (You can’t change E and r , of course.)

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QUESTION:

Problem 5P

A battery of emf ϵ and internal resistance r is hooked up to a variable “load” resistance, R. If you want to deliver the maximum possible power to the load, what resistance R should you choose? (You can’t change E and r , of course.)

ANSWER:

Step 1 of 3

We are required to find the value of resistance  for which the circuit would deliver the maximum power.

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